Episode 2.0 of DEFINE STRENGTH showcases one of the most inspirational and positive people I’ve ever met — Crystal Williams. If you’ve ever been punched in the gut by life, Crystal’s story is the ultimate inspiration.

Welcome to DEFINE STRENGTH. It’s a project that sets out to find individuals that’ve conquered moments of extreme tragedy and pain and tells the stories of how they not only refused to give in to that pain, but channeled it to come out infinitely stronger.

Everyone, meet Willie Murphy. She is an unadulterated badass. More badass than you or I. She is also a woman and a 77-year-old grandma—no, a COMPETITIVE POWERLIFTER—who can almost certainly lift more than you can.

Chances are, you’ve already heard Taylor Swift’s ‘Shake It Off’ about 4385723948x and find it insufferable at this point. But if you’re going to give it one more shot, listen to it synced up with this throwback 1989 aerobics video.